function CLASS_XMLHTTP()
{

}
CLASS_XMLHTTP.prototype.getXmlHttp = function() 
{ 
	var pgmIds = ["MSXML3.XMLHTTP", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP", "MSXML.XMLHTTP", "MSXML2.ServerXMLHTTP"];
	var xmlhttp = null;
	for (var i = 0; i < pgmIds.length; i++) {
		try {
			xmlhttp = new ActiveXObject(pgmIds[i]);
		} catch(ex) {}
		if (xmlhttp != null) return xmlhttp;
	}
	
	return null;
};